The horsetail crab is a detachment of aquatic helicera from the merostomy class. The name is given by the long xiphoid tail spike, located at the rear

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The horsetail crab is a detachment of aquatic helicera from the merostomy class. The name is given by the long xiphoid tail spike, located at the rear end of the body.

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Photo credit: © Elizaveta Galitckaia / Alamy / Afripics
License: Royalty Free
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